320AS179-3 — THUMBSCREW

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

320AS179-3: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: THUMB NO. 3, head_height: 0.500 INCHES NOMINAL IN, point_style: FLAT, point_length: 0.085 INCHES NOMINAL IN, thread_length: 0.378 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-162-5563, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

320AS179-3

NSN: 5305-00-162-5563
FSC: 5305 — Screws
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	THUMB NO. 3
head_height	0.500 INCHES NOMINAL IN
point_style	FLAT
point_length	0.085 INCHES NOMINAL IN
thread_length	0.378 INCHES NOMINAL IN
fastener_length	0.736 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
surface_treatment	CHROMIUM OVERALL
point_chamfer_angle	30.0 DEGREES NOMINAL
width_between_flats	0.875 INCHES NOMINAL IN
nominal_thread_diameter	0.250 INCHES IN
NSN	5305-00-162-5563

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.500 INCHES NOMINAL IN

•

POINT LENGTH: 0.085 INCHES NOMINAL IN

•

FASTENER LENGTH: 0.736 INCHES NOMINAL IN

•

THREAD LENGTH: 0.378 INCHES NOMINAL IN

•

POINT CHAMFER ANGLE: 30.0 DEGREES NOMINAL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: THUMB NO. 3

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.500 INCHES NOMINAL IN
POINT LENGTH	0.085 INCHES NOMINAL IN
FASTENER LENGTH	0.736 INCHES NOMINAL IN
THREAD LENGTH	0.378 INCHES NOMINAL IN
POINT CHAMFER ANGLE	30.0 DEGREES NOMINAL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	THUMB NO. 3
THREAD DIRECTION	RIGHT-HAND
POINT STYLE	FLAT
WIDTH BETWEEN FLATS	0.875 INCHES NOMINAL IN

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES 2

320AS196-3Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

320AS173-3Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 320AS179-3?

320AS179-3 is a THUMBSCREW.

What parts can replace 320AS179-3?

There are 2 known substitutes for 320AS179-3: 320AS196-3, 320AS173-3. Substitute compatibility should be verified for your specific system.

What is the NSN for 320AS179-3?

320AS179-3 is cataloged in the U.S. Government catalog under NSN 5305-00-162-5563. This indicates validated use in U.S. government and defense supply chains.

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